Commits on Oct 15, 2024

1. nilrt.inc: Change PACKAGE_FEED_* to default assignment …

   Locally-hosted package repositories are a longstanding NI Linux RT development
   pattern. While these can be trivially configured in /etc/opkg/ after
   installation, being able to customize the feed URLs in the base system image
   itself unlocks some unique automation possibilities.
   
   While nilrt/scripts/tests/test_nilrt-ptest.py presently implements a feed
   server (and rewriting the post-install opkg configuration accordingly), its
   implementation is tightly coupled to the needs of ptest execution. Instead, the
   nominal way to accomplish this should be in site.conf: set PACKAGE_FEED_URIS to
   point at the local server, and clear out PACKAGE_FEED_BASE_PATHS, because the
   "extra/" and "main/" subdirectory distinction does not exist at the level of
   developer bitbake runs, nor arguably should it.
   
   That's not presently possible because PACAKGE_FEED_URIS and
   PACKAGE_FEED_BASE_PATHS are assigned in the usual way (`=`) in nilrt.inc,
   overriding anything set in nilrt.inc. If we change nilrt.inc to only set default
   values, i.e. `?=`, then customizing them in site.conf works. Note that almost
   all other variables in nilrt.inc are already default-assigned.
   
   PACKAGE_FEED_ARCHS does not need to be customizing for this use case, but is
   also changed to default assignment for reasons of consistency.
   
   Signed-off-by: Richard Tollerton <rich.tollerton@ni.com>

   

   rtollert committed Oct 15, 2024
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